Fe,Pd Co‐Incorporated LaCoO₃ Perovskites: Modification of Thermal Stability and Catalytic Activity for Gasoline Vehicle Exhaust Purification

Abstract

A series of LaCo 0.95-x Fe x Pd 0.05 O 3 (x = 0, 0.1, 0.2, 0.3) perovskite-type catalysts have been prepared by a modified sol-gel method. Their structures and physicochemical properties have been studied by powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), the Brunauer-Emmett-Teller (BET) isotherm technique, and temperature-programmed reduction (TPR). Structural characterization showed that Fe had been successfully doped into the perovskite lattice and that Fe